Which of the following is an example of a unilineal descent system?
A) Both the mother's and father's lines are equally used to determine descent and kinship.
B) A system has no clear-cut descent group, but rather has a network of kin called kindred.
C) A man and his children belong to the same descent group. Inheritance is passed from father to son.
D) A child chooses to affiliate with his or her mother's descent group.
E) A child chooses to affiliate with his or her father's descent group.
C
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A recessive allele __________
a. needs to be present on only one chromosome to be expressed b. is never expressed c. needs to be present on both chromosomes to be expressed d. occurs as a regulatory gene only
Technological advances shift a firm's production function ________ and its marginal product of labor curve ________.
A) downward; downward B) upward; downward C) downward; upward D) upward; upward
Which list best describes gene flow?
A) leads to speciation; refers to breeding within a population B) a form of natural selection; generally impossible between species C) often accomplished by emigration; aids in the reproductive isolation of populations D) associated with small populations, sometimes referred to as "founder's effect" E) often works to prevent or reduce reproductive isolation between populations; promotes genetic similarity between populations
A subculture is a group that has differing values and beliefs from the dominant culture in the same society
Indicate whether the statement is true or false